Direct flights to Seoul | Cheapflights

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Cheapest

Best

Last-minute

One-way

Cheapest flights to Seoul
Explore the most affordable flight options available to Seoul. Find the lowest fares based on data from user searches, with prices last updated on 6 November 2026.

Thu 19/1101:00 -

Nonstop5h 25m

Sun 29/1119:30 -

Nonstop6h 20m

Deal found 5/11฿10,262

Thu 19/1101:30 -

Nonstop5h 30m

Sun 29/1119:50 -

Nonstop6h 20m

Deal found 1/11฿10,463

Best time to book a flight to Seoul

Have a flexible travel schedule? Discover the best time to fly to Seoul with our price prediction graph.

TH1-SEL

BKK-ICN

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Fly from

Route

Depart

Return

Price

Cheapest return flight

BangkokIncheon

BKK Bangkok Suvarnabhumi - ICN Incheon Intl

BKKICN

Bangkok Suvarnabhumi

Thu 24/12

22:25-06:20

Nonstop5h 55m

Incheon Intl

Wed 31/12

00:00-22:00

Nonstop0h 00m

฿5,649

BangkokIncheon

BKK Bangkok Suvarnabhumi - ICN Incheon Intl

BKKICN

Bangkok Suvarnabhumi

Tue 20/4

22:45-06:15

Nonstop5h 30m

Incheon Intl

Wed 31/12

00:00-22:00

Nonstop0h 00m

฿6,652

BangkokIncheon

BKK Bangkok Suvarnabhumi - ICN Incheon Intl

BKKICN

Bangkok Suvarnabhumi

Thu 4/3

22:55-06:15

Nonstop5h 20m

Incheon Intl

Wed 31/12

00:00-22:00

Nonstop0h 00m

฿6,652

BangkokIncheon

BKK Bangkok Suvarnabhumi - ICN Incheon Intl

BKKICN

Bangkok Suvarnabhumi

Thu 22/4

22:45-06:15

Nonstop5h 30m

Incheon Intl

Wed 31/12

00:00-22:00

Nonstop0h 00m

฿6,652

BangkokIncheon

BKK Bangkok Suvarnabhumi - ICN Incheon Intl

BKKICN

Bangkok Suvarnabhumi

Fri 5/2

22:55-06:15

Nonstop5h 20m

Incheon Intl

Wed 31/12

00:00-22:00

Nonstop0h 00m

฿7,187

BangkokIncheon

BKK Bangkok Suvarnabhumi - ICN Incheon Intl

BKKICN

Bangkok Suvarnabhumi

Wed 23/12

01:00-08:25

Nonstop5h 25m

Incheon Intl

Wed 31/12

00:00-22:00

Nonstop0h 00m

฿7,588

BangkokIncheon

BKK Bangkok Suvarnabhumi - ICN Incheon Intl

BKKICN

Bangkok Suvarnabhumi

Fri 27/11

22:55-06:15

Nonstop5h 20m

Incheon Intl

Wed 31/12

00:00-22:00

Nonstop0h 00m

฿7,622

BangkokIncheon

BKK Bangkok Suvarnabhumi - ICN Incheon Intl

BKKICN

Bangkok Suvarnabhumi

Thu 10/12

01:00-08:25

Nonstop5h 25m

Incheon Intl

Wed 31/12

00:00-22:00

Nonstop0h 00m

฿7,655

Fastest return journey

BangkokIncheon

BKK Bangkok Suvarnabhumi - ICN Incheon Intl

BKKICN

Bangkok Suvarnabhumi

Tue 1/12

02:40-10:00

Nonstop5h 20m

Incheon Intl

Wed 31/12

00:00-22:00

Nonstop0h 00m

฿7,822

BangkokIncheon

BKK Bangkok Suvarnabhumi - ICN Incheon Intl

BKKICN

Bangkok Suvarnabhumi

Sat 21/11

01:00-08:25

Nonstop5h 25m

Incheon Intl

Wed 31/12

00:00-22:00

Nonstop0h 00m

฿8,123

Flights are sorted by cheapest return flights first.

Deals found on 3/11

Showing 1-10 of 22 resultsSorted by cheapest first

1

2

3

Reviews of airlines flying non-stop to Seoul

Check out reviews from past customers who have flown Korean Air,AIR PREMIA, andThai Airways to South Korea to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

8.4

Very Good

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

8.4

Very Good

8.4

Very Good

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

AIR PREMIA

8.0

Very Good

8.4

Very Good

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

7.9

Good

8.4

Very Good

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Thai Vietjet Air

6.7

Okay

8.4

Very Good

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

FAQ about direct flights to Seoul

How much are direct flights to Seoul?
On average, a one-way direct flight to Seoul will cost users approximately ฿16,767. If you're looking for a direct return flight to Seoul, you can expect to pay around ฿16,617.
Which airlines fly direct to Seoul?
At the moment, Thai AirAsia X, Thai Vietjet Air, Korean Air, AIR PREMIA, Thai Airways, Asiana Airlines, Trinity Airways (Formerly T'way Air), Eastar Jet, Thai Lion Air, Thai AirAsia offer direct flights to Seoul. Thai AirAsia X is currently the most popular airline that flies direct to Seoul.
What is the best time of year to fly direct to Seoul?
If you're seeking the lowest price on a direct flight to Seoul, February is worth consideration, as prices are usually at their lowest, on average. January may be most appealing to users looking for the quietest time to visit Seoul, when demand is typically at its lowest.
What is the most popular direct flight origin to Seoul?
Currently, the most popular direct flight origin to Seoul is Bangkok Suvarnabhumi Airport. A return direct flight from Bangkok Suvarnabhumi Airport to Seoul typically costs around ฿16,174.

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